EP2425902B1 - Dust-removing apparatus - Google Patents
Dust-removing apparatus Download PDFInfo
- Publication number
- EP2425902B1 EP2425902B1 EP11191084A EP11191084A EP2425902B1 EP 2425902 B1 EP2425902 B1 EP 2425902B1 EP 11191084 A EP11191084 A EP 11191084A EP 11191084 A EP11191084 A EP 11191084A EP 2425902 B1 EP2425902 B1 EP 2425902B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- end edge
- dust
- jet nozzle
- slit
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 5
- 239000000428 dust Substances 0.000 description 16
- 230000002093 peripheral effect Effects 0.000 description 13
- 239000000843 powder Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 8
- 238000007599 discharging Methods 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
- B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
- B26D1/24—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter
- B26D1/245—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter for thin material, e.g. for sheets, strips or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
- B08B5/023—Cleaning travelling work
- B08B5/026—Cleaning moving webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
- B08B5/043—Cleaning travelling work
- B08B5/046—Cleaning moving webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/18—Means for removing cut-out material or waste
- B26D7/1845—Means for removing cut-out material or waste by non mechanical means
- B26D7/1854—Means for removing cut-out material or waste by non mechanical means by air under pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/18—Means for removing cut-out material or waste
- B26D7/1845—Means for removing cut-out material or waste by non mechanical means
- B26D7/1863—Means for removing cut-out material or waste by non mechanical means by suction
Definitions
- This invention relates to a dust-removing apparatus, such as it is known from EP 1 674 398 A1 , upon which the preamble of claim 1 below is based.
- a slitter apparatus 44 provided with a slitter blade 43 driven to rotate, is used to obtain belt bodies 42 by cutting base material (a continuous sheet of film, paper, etc.) 41 into a predetermined width.
- the base material 41 runs continuously in an arrow R direction, and the base material 41 of several dekameters to several kilometers is continuously cut by plural slitter blades 43 fixed to a rotation shaft 45 driven to rotate (by a driving means not shown in Figures) with a predetermined interval.
- the dust-removing apparatus described by the Javanese patent No. 2820599 can certainly remove dust put lightly on the surface of running sheet body and sheets. Especially, dust put lightly on flat and broad plane can be easily and certainly removed.
- the slitter powder is stuck on the end edges of the slitter blades 43 and the belt bodies 42 relatively firmly. Secondly, it is quite difficult to efficiently suck complicated suction areas.
- a slitter apparatus 2 provided with slitter blades 1, is shown as a concrete example to which a dust-removing apparatus of the present invention is applied.
- Base material 3 such as plastic film, paper, cloth, etc. is cut with a predetermined width dimension by the plural slitter blades 1 to make belt-shaped continuous sheet bodies S.
- the base material 3 is continuously conveyed (running) in a direction of an arrow R, the plural slitter blades 1 are fixed to a rotation shaft 4, driven to rotate by a driving means not shown in Figures, with a predetermined interval to continuously cut the base material having length of several dekameters to kilometers.
- Slit powder is generated in the cutting process described above, and stuck to a peripheral end edge 11. of the slitter blade 1 and end edges 5 of the sheet body S. Dust such as the slit powder is removed by the dust-removing apparatus of the present invention having a dust-removing head 10.
- the dust-removing head 10 disposed as to correspond to the slitter blade 1 drawn on an upper position of Figure 1 , is described. As shown in Figures 2 through 5B , a slit groove 7, through which the (rotating) peripheral end edge 11 of the slitter blade 1 is running, is formed on the above-mentioned dust-removing head 10.
- a jet nozzle 12 to exhale air toward the running peripheral end edge 11 and a suction hole 14 to inhale the exhaled air are disposed on an inner face 7A of the slit groove 7 of the dust-removing head 10.
- double-hatching represents air discharging ducts 21 and single-hatching represents air suction ducts 22.
- the jet nozzle 12 is provided with a blade edge jet nozzle 12a formed toward a blade edge 8 of the peripheral end edge 11 of the slitter blade 1 and side jet nozzles 12b formed on the left and right sides of the peripheral end edge 11.
- the blade edge jet nozzle 12a is connected to a middle one of the three air discharging ducts 21 parallel in Figure 3 , and formed as a small round hole smaller than the diameter of the middle air discharging duct 21 as to increase the flowing speed and let the air jet strongly hit the blade edge 8.
- each of the upper and lower air discharging ducts 21. is communicatively connected to the side jet nozzle 12b in Figure 3 .
- Each of the upper and lower air discharging ducts 21 in Figure 3 is a circular hole not opening on a forth end face 13A of a head body 13 and formed before the forth end face 13A for a predetermined dimension.
- the upper and lower two closed end portions among the three air discharging ducts 21 are communicatively connected to the side jet nozzle 12b, and the side jet nozzle 12b opens on the side face of the inner face 7A of the slit groove 7 (upper and lower faces shown in Figures 3 , 5A, and 5B ) to jet air toward the peripheral end edge 11 of the slitter blade 1.
- the side jet nozzle 12b is formed as a straight slit hole corresponding to a radial line (diameter line) 15 on an axis point 0 1 when observed in a direction of an axis L 1 of the slitter blade 1. Then, the side jet nozzle 12b as a straight slit hole is formed in a direction at right angles with the both side faces of the inner face 7A of the slit groove 7 (refer to Figures 4A and 4B ).
- one unit of the suction hole 14, the jet nozzle 12, and another unit of the suction hole 14 are serially disposed from a slit upstream end 7B, where the slitter blade 1 rotating in an arrow C direction intrudes to the slit groove 7, toward a slit downstream end 7C where the slitter blade 1 goes out of the slit groove 7.
- the suction holes 14 are disposed on a bottom face of the inner face 7A of the slit groove 7.
- the head body 13 is a short cylinder of which diameter is decreasing approximately or gradually toward the forth end side in Figures, a connection plug for suction air piping is screwed to a tapped hole 16 on a base end face 13B, and the tapped hole 16 is communicatively connected to the air suction ducts 22 composed of two parallel circular through holes.
- Figures 5A and 5B are enlarged cross sectional views at E-E line in Figure 4A .
- Figure 5A shows a case in which the side jet nozzles 12b as a straight slit blow the air from the side faces 7A of the slit groove 7 (upper and lower faces in Figure 5A ) in directions at right angles with the radial line 15.
- Figure 5B shows a case in which the side jet nozzles 12b as a straight slit blow the air from the side faces 7A of the slit groove 7 in oblique directions (especially toward the inner portion of the slit).
- Figures 6 and 7 showing the dust-removing head 10 applied to a lower half of Figure 1 , correspond to Figures 2 and 3 .
- a jet nozzle 12 to exhale air toward the running work end edge 5 and a suction hole 14 to inhale the air exhaled from the jet nozzle 12 are disposed on an inner face 7A of the slit groove 7 of the dust-removing head 10.
- the jet nozzle 12 is provided with a far end edge jet nozzle 12c formed toward a far end edge portion 5A of the end edge 5 of the work W and obverse and reverse jet nozzles 12d.
- the jet nozzle 12 is composed of three nozzles.
- a unit of the suction hole 14, the jet nozzle 12, and another unit of the suction hole 14 are serially disposed from a slit upstream end 7B, where the end edge 5 of the work W intrudes to the slit groove 7, toward a slit downstream end 7C where the end edge 5 goes out of the slit groove 7.
- the obverse and reverse jet nozzles 12d are formed into a straight slit hole at right angles with the far end edge portion 5A when observed in a direction at right angles with the work W as shown in Figure 6 .
- a mark 17 represents a joint for discharge air piping to which a discharge air piping, not shown in Figures, is connected.
- the joint 17 is screwed to a tapped hole 18 on the peripheral face of the head body 13, and communicatively connected to three air discharging ducts in longitudinal direction through crossing two side holes 19 and 20.
- separated rectangular sheet pieces namely, leaf bodies may be inserted to the slit groove 7 of the dust-removing head 10 of the present invention to remove dust on the end edges (sides) of the leaf bodies (not shown in Figures).
- Figures 5A and 5B can be applied to the embodiment shown in Figures 6 and 7 .
- Figures 8A and 8B are explanatory views in which the slit groove 7 is drawn into a perspective view with solid lines, and the jet and suction of the air are simply shown with arrows.
- an arrow F shows the air jet direction from the blade edge jet nozzle 12a or the far end edge jet nozzle 12c
- arrows G show the air jet directions from the side jet nozzles 12b or the obverse and reverse jet nozzles 12d.
- the arrows G show the oblique jet to the inner side of the slit groove 7
- arrows H show the air suction direction by the suction holes 14.
- Figure 9A, 9B, and 9C respectively show other embodiments showing that the present invention, not restricted to Figures 8A and 8B , may be modified. That is to say, Figure 9A shows that air may be sucked by the side faces of the slit groove 7 in directions of arrows H1 and H2 other than the arrows F, G, and H in Figures 8A and 8B .
- Figure 9B shows that the air may be sucked, different from Figure 8B , on a center position of the innermost face of the slit groove 7 in an arrow H0 direction and jetted from the both end sides as shown with arrows F1 and F2 which are preferably oblique.
- the side faces are similar to that of Figure 9A .
- Figure 9C shows that plural air jets F3 and plural suctions H3 are conducted to exemplify that air jets and suctions can be freely increased. And, on the side faces of the slit groove 7, the air may be jetted from the end portions as shown with arrows G3 and G4, and sucked on the center as shown with arrows H4. That is to say, Figure 9B and Figure 9C conduct suction and jet on opposite positions each other on the side faces.
- the dust-removing head 10 has been mainly described above because the principal portion of the present invention is the dust-removing head 10, the dust-removing apparatus of the present invention is, other than the dust-removing head 10, composed by adding pipings, a blower unit, a suction device, valves, etc. not shown in Figures.
- the present invention can remove relatively firmly stuck dust such as slitter powder and resolve the problem of dust scattering toward outside because the dust-removing head 10, having the slit groove 7 in which the peripheral end edge 11 of the slitter blade 1 runs through, is provided, and the jet nozzle 12 for jetting air toward the running peripheral end edge 11 and the suction hole 14 to suck the air jetted out of the jet nozzle 12 are disposed on the inner face 7A of the slit groove 7 of the dust-removing head 10.
- the dust relatively firmly stuck to the end edge 5 of the continuous sheet body S or leaf bodies can be certainly and efficiently removed, and environment can be kept clean without dust scattering toward outside (re-stuck can be prevented) because the dust-removing head 10, having the slit groove 7 in which the end edge 5 of work W composed of the continuous sheet body S or leaf bodies passes through, is provided, and the jet nozzle 12 for jetting air toward the passing end edge 5 and the suction hole 14 to suck the air jetted out of the jet nozzle 12 are disposed on the inner face 7A of the slit groove 7 of the dust-Tremoving head 10.
- the peripheral end edge 11 of the slitter blade 1 can be certainly and swiftly made clean because the jet nozzle 12 is provided with the blade edge jet nozzle 12a disposed toward the blade edge 8 of the peripheral end edge 11 of the slitter blade 1, and the side jet nozzles 12b each of which is disposed respectively on the left side and the right side of the peripheral end edge 11. Especially, even slitter powder firmly stuck to the blade edge 8 can be certainly removed.
- the jet nozzle 12 is provided with the far end edge jet nozzle 12c disposed toward the far end edge portion 5A of the end edge 5 of the work W and the obverse and reverse jet nozzles 12d each of which is disposed respectively toward the obverse face and the reverse face of the end edge 5.
- the dust is prevented from being blown by the air jet from the jet nozzle 12 and scattered toward outside because one unit of the suction hole 14, the jet nozzle 12, and another unit of the suction hole 14 are serially disposed from the slit upstream end 7B, where the rotating slitter blade 1 intrudes to the slit groove 7, to the slit downstream end 7C, where the slitter blade 1 goes out of the slit groove 7.
- the dust is prevented from being blown by the air jet from the jet nozzle 12 and scattered toward outside because one unit of the suction hole 14, the jet nozzle 12, and another unit of the suction hole 14 are serially disposed from the slit upstream end 7B, where the running end edge 5 of the work W intrudes to the slit groove 7, to the slit downstream end 7C, where the end edge 5 goes out of the slit groove 7.
- the air is blown to the splitter blade 1 with strong pressure to easily and efficiently remove the dust on areas of relatively broad width because the side nozzles 12b form the straight slit hole corresponding to the radial line 15 on the axis point 0 1 when observed in the direction of the axis L1 of the slitter blade 1.
- the air is blown to the slitter blade 1 with strong pressure to easily and efficiently remove the dust on areas of relatively broad width because the obverse and reverse jet nozzles 12d form the straight slit hole at right angles with the far end edge portion 5A when observed in the direction at right angles with the work W.
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- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
- Nonmetal Cutting Devices (AREA)
Description
- This invention relates to a dust-removing apparatus, such as it is known from
EP 1 674 398 A1claim 1 below is based. - Generally, as shown in
Figures 10 and11 , aslitter apparatus 44, provided with aslitter blade 43 driven to rotate, is used to obtainbelt bodies 42 by cutting base material (a continuous sheet of film, paper, etc.) 41 into a predetermined width. Thebase material 41 runs continuously in an arrow R direction, and thebase material 41 of several dekameters to several kilometers is continuously cut byplural slitter blades 43 fixed to arotation shaft 45 driven to rotate (by a driving means not shown in Figures) with a predetermined interval. - When the
base material 41 is cut, slit powder is generated and stuck to end edges of theslitter blades 43 and thebelt bodies 42. - Conventionally, an air gun is used to remove the stuck slit powder in many cases. However, when the slit powder on the
slitter blades 43 and thebelt bodies 42 is blown off by the air gun, the powder is scattered around and may be stuck again to thebase material 41 and thebelt bodies 42. - Or, as shown in
Figures 10 and11 , although a suction dust-removing apparatus, having acover 46 surrounding theslitter blade 43 as the air is sucked in an arrow U direction and asuction piping 47, is used in some cases, the slitter powder, once stuck, can not be easily removed and theslitter blades 43 and thebelt bodies 42 can not be sufficiently clean. And, installation space of theslitter apparatus 44 is generally small, so it is often difficult to place the suction dust-removing apparatus as shown inFigures 10 and11 . - Therefore, it was also considered to apply a dust-removing apparatus of air jet-suction type (refer to Japanese patent No.
2820599 - The dust-removing apparatus described by the Javanese patent No.
2820599 - However, it was revealed that sufficient dust removal is difficult in the
slitter apparatus 44 ofFigures 10 and11 . - That is to say, firstly, the slitter powder is stuck on the end edges of the
slitter blades 43 and thebelt bodies 42 relatively firmly. Secondly, it is quite difficult to efficiently suck complicated suction areas. - Therefore, it is an object of the present invention to provide a dust-removing apparatus with which dust stuck relatively firmly on portions having complicated configurations such as the end edges (edge portions) of the slitter blades and the belt bodies can be certainly and efficiently removed.
- This object is solved according to the present invention by the dust-removing apparatus including the features of
claim 1. A further detailed embodiment is described in thedependent claim 2. - The present invention will be described with reference to the accompanying drawings, in which:
-
Figure 1 is a simplified top view showing an example of application of the present invention; -
Figure 2 is a front view showing an embodiment of the present invention; -
Figure 3 is a top view; -
Figure 4A is a side view for explanation of a principal portion; -
Figure 4B is a cross-sectional view at b-b line ofFigure 3 for explanation of a principal portion; -
Figure 4C is a cross-sectional view at c-c line ofFigure 3 for explanation of a principal portion; -
Figure 4D is a. cross-sectional view at d-d line ofFigure 3 for explanation of a principal portion; -
Figures 5A and 5B are enlarged cross-sectional views at E-E line ofFigure 4A ; -
Figure 6 is a top view showing another embodiment of the present invention; -
Figure 7 is a front view; -
Figures 8A and 8B are explanatory views of principal construction; -
Figures 9A, 9B and 9C are explanatory views of principal construction each of which respectively shows an embodiment; -
Figure 10 is a top view of a conventional example; and -
Figure 11 is a side view of the conventional example. - Preferred embodiments of the present invention will now be described with reference to the accompanying drawings.
- A
slitter apparatus 2, provided withslitter blades 1, is shown as a concrete example to which a dust-removing apparatus of the present invention is applied.Base material 3 such as plastic film, paper, cloth, etc. is cut with a predetermined width dimension by theplural slitter blades 1 to make belt-shaped continuous sheet bodies S. Thebase material 3 is continuously conveyed (running) in a direction of an arrow R, theplural slitter blades 1 are fixed to a rotation shaft 4, driven to rotate by a driving means not shown in Figures, with a predetermined interval to continuously cut the base material having length of several dekameters to kilometers. - Slit powder is generated in the cutting process described above, and stuck to a
peripheral end edge 11. of theslitter blade 1 andend edges 5 of the sheet body S. Dust such as the slit powder is removed by the dust-removing apparatus of the present invention having a dust-removinghead 10. - First, the dust-removing
head 10, disposed as to correspond to theslitter blade 1 drawn on an upper position ofFigure 1 , is described. As shown inFigures 2 through 5B , aslit groove 7, through which the (rotating)peripheral end edge 11 of theslitter blade 1 is running, is formed on the above-mentioned dust-removinghead 10. - A
jet nozzle 12 to exhale air toward the runningperipheral end edge 11 and asuction hole 14 to inhale the exhaled air are disposed on aninner face 7A of theslit groove 7 of the dust-removinghead 10. - In
Figures 2 and3 , double-hatching representsair discharging ducts 21 and single-hatching representsair suction ducts 22. - The
jet nozzle 12 is provided with a bladeedge jet nozzle 12a formed toward ablade edge 8 of theperipheral end edge 11 of theslitter blade 1 andside jet nozzles 12b formed on the left and right sides of theperipheral end edge 11. The bladeedge jet nozzle 12a is connected to a middle one of the threeair discharging ducts 21 parallel inFigure 3 , and formed as a small round hole smaller than the diameter of the middleair discharging duct 21 as to increase the flowing speed and let the air jet strongly hit theblade edge 8. - And, each of the upper and lower
air discharging ducts 21. is communicatively connected to theside jet nozzle 12b inFigure 3 . Each of the upper and lowerair discharging ducts 21 inFigure 3 is a circular hole not opening on a forthend face 13A of ahead body 13 and formed before the forthend face 13A for a predetermined dimension. As described above, the upper and lower two closed end portions among the threeair discharging ducts 21 are communicatively connected to theside jet nozzle 12b, and theside jet nozzle 12b opens on the side face of theinner face 7A of the slit groove 7 (upper and lower faces shown inFigures 3 ,5A, and 5B ) to jet air toward theperipheral end edge 11 of theslitter blade 1. Theside jet nozzle 12b, as shown inFigure 2 , is formed as a straight slit hole corresponding to a radial line (diameter line) 15 on an axis point 01 when observed in a direction of an axis L1 of theslitter blade 1. Then, theside jet nozzle 12b as a straight slit hole is formed in a direction at right angles with the both side faces of theinner face 7A of the slit groove 7 (refer toFigures 4A and 4B ). - And, as clearly shown in
Figures 4A and3 , one unit of thesuction hole 14, thejet nozzle 12, and another unit of thesuction hole 14 are serially disposed from a slitupstream end 7B, where theslitter blade 1 rotating in an arrow C direction intrudes to theslit groove 7, toward a slitdownstream end 7C where theslitter blade 1 goes out of theslit groove 7. As shown inFigure 4A , thesuction holes 14 are disposed on a bottom face of theinner face 7A of theslit groove 7. - The
head body 13 is a short cylinder of which diameter is decreasing approximately or gradually toward the forth end side in Figures, a connection plug for suction air piping is screwed to a tappedhole 16 on abase end face 13B, and the tappedhole 16 is communicatively connected to theair suction ducts 22 composed of two parallel circular through holes. -
Figures 5A and 5B are enlarged cross sectional views at E-E line inFigure 4A .Figure 5A shows a case in which theside jet nozzles 12b as a straight slit blow the air from the side faces 7A of the slit groove 7 (upper and lower faces inFigure 5A ) in directions at right angles with theradial line 15. 0n the contrary,Figure 5B shows a case in which theside jet nozzles 12b as a straight slit blow the air from the side faces 7A of theslit groove 7 in oblique directions (especially toward the inner portion of the slit). InFigure 5B , there is an advantage that the air jetted to theperipheral end edge 11 of theslitter blade 1 inFigure 2 is certainly sucked into thesuction holes 14 on the upstream and downstream sides. In other words, it is an advantage that dust is not scattered out of theslit groove 7. - Next, another embodiment shown in
Figures 6 and7 is described.Figures 6 and7 , showing the dust-removinghead 10 applied to a lower half ofFigure 1 , correspond toFigures 2 and3 . - In
Figure 1 , the continuous sheet body S cut and separated by theslitter blade 1 separates the neighboring sheet bodies in upper and lower oblique directions and gives sending force (refer toFigure 11 showing the conventional example). Therefore, the dust-removingheads 10 do not interfere with the continuous sheet bodies S when disposed as shown inFigure 1 . - Explanation of the dust-removing
head 10 is omitted because the configuration and construction of the dust-removinghead 10 are similar to that ofFigures 2 through 5B . Theend edge 5 of work W such as a continuous sheet body goes through theslit groove 7 and dust such as slitter powder stuck to theend edge 5 is removed. - A
jet nozzle 12 to exhale air toward the runningwork end edge 5 and asuction hole 14 to inhale the air exhaled from thejet nozzle 12 are disposed on aninner face 7A of theslit groove 7 of the dust-removinghead 10. - The
jet nozzle 12 is provided with a far endedge jet nozzle 12c formed toward a farend edge portion 5A of theend edge 5 of the work W and obverse andreverse jet nozzles 12d. Thejet nozzle 12 is composed of three nozzles. - Further, (as clearly shown in
Figure 6 ) a unit of thesuction hole 14, thejet nozzle 12, and another unit of thesuction hole 14 are serially disposed from a slitupstream end 7B, where theend edge 5 of the work W intrudes to theslit groove 7, toward a slitdownstream end 7C where theend edge 5 goes out of theslit groove 7. - And, the obverse and
reverse jet nozzles 12d are formed into a straight slit hole at right angles with the farend edge portion 5A when observed in a direction at right angles with the work W as shown inFigure 6 . - In
Figure 6 (Figure 2 ), amark 17 represents a joint for discharge air piping to which a discharge air piping, not shown in Figures, is connected. The joint 17 is screwed to a tappedhole 18 on the peripheral face of thehead body 13, and communicatively connected to three air discharging ducts in longitudinal direction through crossing twoside holes - Other than the continuous sheet body S as shown in
Figures 6 and7 , separated rectangular sheet pieces, namely, leaf bodies may be inserted to theslit groove 7 of the dust-removinghead 10 of the present invention to remove dust on the end edges (sides) of the leaf bodies (not shown in Figures). - The configuration and construction of
Figures 5A and 5B can be applied to the embodiment shown inFigures 6 and7 . - Next,
Figures 8A and 8B are explanatory views in which theslit groove 7 is drawn into a perspective view with solid lines, and the jet and suction of the air are simply shown with arrows. - In
Figures 8A and 8B , an arrow F shows the air jet direction from the bladeedge jet nozzle 12a or the far endedge jet nozzle 12c, arrows G show the air jet directions from theside jet nozzles 12b or the obverse andreverse jet nozzles 12d. Especially, inFigure 8B , the arrows G show the oblique jet to the inner side of theslit groove 7, And, arrows H show the air suction direction by the suction holes 14. - Then,
Figure 9A, 9B, and 9C respectively show other embodiments showing that the present invention, not restricted toFigures 8A and 8B , may be modified. That is to say,Figure 9A shows that air may be sucked by the side faces of theslit groove 7 in directions of arrows H1 and H2 other than the arrows F, G, and H inFigures 8A and 8B . - And,
Figure 9B shows that the air may be sucked, different fromFigure 8B , on a center position of the innermost face of theslit groove 7 in an arrow H0 direction and jetted from the both end sides as shown with arrows F1 and F2 which are preferably oblique. And, the side faces are similar to that ofFigure 9A . - Further,
Figure 9C shows that plural air jets F3 and plural suctions H3 are conducted to exemplify that air jets and suctions can be freely increased. And, on the side faces of theslit groove 7, the air may be jetted from the end portions as shown with arrows G3 and G4, and sucked on the center as shown with arrows H4. That is to say,Figure 9B and Figure 9C conduct suction and jet on opposite positions each other on the side faces. - Although the dust-removing
head 10 has been mainly described above because the principal portion of the present invention is the dust-removinghead 10, the dust-removing apparatus of the present invention is, other than the dust-removinghead 10, composed by adding pipings, a blower unit, a suction device, valves, etc. not shown in Figures. - And, it is also possible to add a supersonic wave generator and an ion generator when desired.
- The present invention, as described above, can remove relatively firmly stuck dust such as slitter powder and resolve the problem of dust scattering toward outside because the dust-removing
head 10, having theslit groove 7 in which theperipheral end edge 11 of theslitter blade 1 runs through, is provided, and thejet nozzle 12 for jetting air toward the runningperipheral end edge 11 and thesuction hole 14 to suck the air jetted out of thejet nozzle 12 are disposed on theinner face 7A of theslit groove 7 of the dust-removinghead 10. - And, the dust relatively firmly stuck to the
end edge 5 of the continuous sheet body S or leaf bodies can be certainly and efficiently removed, and environment can be kept clean without dust scattering toward outside (re-stuck can be prevented) because the dust-removinghead 10, having theslit groove 7 in which theend edge 5 of work W composed of the continuous sheet body S or leaf bodies passes through, is provided, and thejet nozzle 12 for jetting air toward the passingend edge 5 and thesuction hole 14 to suck the air jetted out of thejet nozzle 12 are disposed on theinner face 7A of theslit groove 7 of the dust-Tremoving head 10. - And, the
peripheral end edge 11 of theslitter blade 1 can be certainly and swiftly made clean because thejet nozzle 12 is provided with the bladeedge jet nozzle 12a disposed toward theblade edge 8 of theperipheral end edge 11 of theslitter blade 1, and theside jet nozzles 12b each of which is disposed respectively on the left side and the right side of theperipheral end edge 11. Especially, even slitter powder firmly stuck to theblade edge 8 can be certainly removed. - And, a portion where the dust is stuck most (the
end edge 5 of the work W) can be concentratedly and efficiently made clan because thejet nozzle 12 is provided with the far endedge jet nozzle 12c disposed toward the farend edge portion 5A of theend edge 5 of the work W and the obverse andreverse jet nozzles 12d each of which is disposed respectively toward the obverse face and the reverse face of theend edge 5. - And, the dust is prevented from being blown by the air jet from the
jet nozzle 12 and scattered toward outside because one unit of thesuction hole 14, thejet nozzle 12, and another unit of thesuction hole 14 are serially disposed from the slitupstream end 7B, where therotating slitter blade 1 intrudes to theslit groove 7, to the slitdownstream end 7C, where theslitter blade 1 goes out of theslit groove 7. - And, the dust is prevented from being blown by the air jet from the
jet nozzle 12 and scattered toward outside because one unit of thesuction hole 14, thejet nozzle 12, and another unit of thesuction hole 14 are serially disposed from the slitupstream end 7B, where the runningend edge 5 of the work W intrudes to theslit groove 7, to the slitdownstream end 7C, where theend edge 5 goes out of theslit groove 7. - And, the air is blown to the
splitter blade 1 with strong pressure to easily and efficiently remove the dust on areas of relatively broad width because theside nozzles 12b form the straight slit hole corresponding to theradial line 15 on the axis point 01 when observed in the direction of the axis L1 of theslitter blade 1. - And, the air is blown to the
slitter blade 1 with strong pressure to easily and efficiently remove the dust on areas of relatively broad width because the obverse andreverse jet nozzles 12d form the straight slit hole at right angles with the farend edge portion 5A when observed in the direction at right angles with the work W.
Claims (2)
- A dust-removing apparatus comprising a construction in which:a dust-removing head (10), having a slit groove (7) adapted to receive an end edge (5) of work (W) composed of a continuous sheet body (S) or leaf bodies passing through, is provided; and further comprisinga jet nozzle (12) adapted to jet air toward the passing end edge (5); characterized in that the jet nozzle (12) and suction holes (14) to suck the air jetted out of the jet nozzle (12) are disposed on an inner face (7A) of the slit groove (7) of the dust-removing head (10); whereinthe jet nozzle (12) is provided with a far end edge jet nozzle (12c) disposable toward a far end edge portion (5A) of the end edge (5) of the work (W), and obverse and reverse jet nozzles (12d) each of which is disposable respectively on an obverse face and a reverse face of the end edge (5); andone of the suction holes (14), the jet nozzle (12), and another of the suction holes (14) are serially disposed from a slit upstream end (7B), where the passing end edge (5) of the work (W) intrudes to the slit groove (7), to a slit downstream end (7C), where the end edge (5) goes out of the slit groove (7).
- The dust-removing apparatus as set forth in claim 1, wherein the obverse and reverse jet nozzles (12d) are adapted to form a straight slit hole at right angles with the far end edge portion (5A) when observed in a direction at right angles with the work (W).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09013098A EP2311580B1 (en) | 2009-10-16 | 2009-10-16 | Dust-removing apparatus |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09013098.0 Division | 2009-10-16 |
Publications (2)
Publication Number | Publication Date |
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EP2425902A1 EP2425902A1 (en) | 2012-03-07 |
EP2425902B1 true EP2425902B1 (en) | 2013-01-16 |
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Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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EP09013098A Active EP2311580B1 (en) | 2009-10-16 | 2009-10-16 | Dust-removing apparatus |
EP11191084A Active EP2425902B1 (en) | 2009-10-16 | 2009-10-16 | Dust-removing apparatus |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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EP09013098A Active EP2311580B1 (en) | 2009-10-16 | 2009-10-16 | Dust-removing apparatus |
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Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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SE1000456A1 (en) * | 2010-05-05 | 2011-11-06 | Tetra Laval Holdings & Finance | Dust removing web guide |
TWI503184B (en) * | 2013-09-04 | 2015-10-11 | All Ring Tech Co Ltd | Dispenser and its material inspection of dust removal method |
CN110434903B (en) * | 2019-09-12 | 2020-11-06 | 烟台大学 | Plastic material segmenting device |
CN112170390B (en) * | 2020-09-25 | 2023-07-07 | 青岛海鼎通讯技术有限公司 | Back cleaning machine for mobile phone back cover plate |
CN112223397A (en) * | 2020-10-15 | 2021-01-15 | 南京棠安电子商务有限公司 | Telephone button sculpture fixing device based on intelligent manufacturing |
CN114833475A (en) * | 2022-04-25 | 2022-08-02 | 深圳市镭沃自动化科技有限公司 | Dust collector of laser equipment |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
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US2163687A (en) * | 1938-01-10 | 1939-06-27 | Bucyrus Monighan Company | Cutting |
US3460418A (en) * | 1967-09-05 | 1969-08-12 | Philip Morris Inc | Cleaner device for cleaning residue from the cutting edge of a rotary disc type cutter |
CH458680A (en) * | 1967-09-08 | 1968-06-30 | Kaelin Erich | Method and device for continuous dedusting of material webs |
JP2820599B2 (en) | 1993-08-31 | 1998-11-05 | 株式会社伸興 | Dust removal device |
DE19519544C2 (en) * | 1995-05-27 | 1999-08-19 | Sundwig Gmbh | Device for removing liquid from the surface of a tape |
SE523995C2 (en) * | 2002-11-07 | 2004-06-15 | Tetra Laval Holdings & Finance | Device for controlling a web of packaging material and ways of removing dust |
DE602004029595D1 (en) * | 2004-12-23 | 2010-11-25 | Tetra Laval Holdings & Finance | Machine for packaging flowable foodstuffs |
-
2009
- 2009-10-16 EP EP09013098A patent/EP2311580B1/en active Active
- 2009-10-16 EP EP11191084A patent/EP2425902B1/en active Active
Also Published As
Publication number | Publication date |
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EP2311580A1 (en) | 2011-04-20 |
EP2311580B1 (en) | 2012-08-08 |
EP2425902A1 (en) | 2012-03-07 |
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